Abstract:
This file contains the text of the rule that updates the continuous instrumental test methods in Appendix A of 40 CFR Part 60. This action would harmonize, simplify, and update the test methods. The methods were originally developed for specific industries but need to be updated for general application. The proposed revisions would remove inconsistencies in equipment and performance specifications to give the methods similar requirements. We are also proposing helpful calculation revisions, quality assurance recommendations, and provisions for sampling at low concentrations.